printf("THIS LOOKS SHOPPED");
I don't think there are any readily available solutions for your problem and it's not an easy one to solve either with an independent device. GPS is useless indoors and more so with the resolution you need (the few meters between bedroom and dining hall).
You would have to build your own solution for this problem, using Arduino, most likely. Relative positioning using accelerometers is your best bet for an independent device, but positioning error builds quickly and you would need it to reset the error by making a reference to an absolute marker every now and then.
Non independent solutions could use RFID tags placed at regular intervals on the walls, granted the living center would have to let you do that too.
As for the display, a circle made of LEDs should be fairly easy to make. Just light up the ones pointing in the correct direction.
Can BLOG do peer review?
Short answer is: Yes.
Peer-reviewed articles is a fairly new thing in science, and most often than not, and the review process is highly questionable. This is because the article is often not reviewed by someone that is interested or a major expert in the field, but instead publishers select reviewers at random and assign them papers to review. In some cases, professors and researches hand down the papers are then given to grad students, who have no expertise in the field, to actually review the papers (my thesis adviser gave me a couple to check a once or twice during my PhD). And as someone who has had his articles reviewed, the criticisms are poor and usually minor (readability is poor, maybe add a chart or more experimental results, etc)
Before the age of peer-reviewed journals, the scientific article was published openly an ANYONE in the same field with an invested interest could attack it. The reviews were helpful and really good science came out of it, because the publishing scientist would have to defend or give up his theory. Now this only happens in very rare cases.
Oh no, he'll only be able to buy five Ferraris this year instead of six.
Don't you mean an ivory backscratcher?
Pound for pound, the amoeba is the most vicious animal on earth.